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SYSTEM BOARD PCD-4LSX, SYSTEM BOARD PCD-H

SIEMENS NIXDORF INFORMATIONSSYSTEME AG

SYSTEM BOARD PCD-4LSX, SYSTEM BOARD PCD-H

Processor

80486SX/80487SX/80486DX/80486DX2

Processor Speed

25/33/40/50(internal)/66(internal)MHz

Chip Set

Unidentified

Video Chip Set

Unidentified

Maximum Onboard Memory

32MB

Maximum Video Memory

2MB

Cache

64/128/256KB

BIOS

Unidentified

Dimensions

330mm x 218mm

I/O Options

Floppy drive interface, IDE interface, parallel port, PS/2 mouse port, serial ports (2), VGA feature connector, VGA port, riser slot

NPU Options

None

CONNECTIONS

Purpose

Location

Purpose

Location

VGA port

CN1

Floppy drive interface

CN7

Parallel port

CN2

Speaker

J13

Serial port 2

CN3

External battery

J14

Serial port 1

CN4

VGA feature connector

J23

PS/2 mouse port

CN5

Front panel connector

JP30

IDE interface

CN6

Riser slot

SL1

USER CONFIGURABLE SETTINGS

Function

Label

Position

Onboard battery enabled

JP8

Pins 1 & 2 closed

 

Onboard battery disabled

JP8

Pins 2 & 3 closed

Monitor type select color

JP10

Closed

 

Monitor type select monochrome

JP10

Open

Mouse IRQ12 enabled

JP11

Closed

 

Mouse IRQ12 disabled

JP11

Open

On board video enabled

JP25

Closed

 

On board video disabled

JP25

Open

DRAM CONFIGURATION

Size

Bank 0

Bank 1

4MB

(4) 1M x 9

None

8MB

(4) 1M x 9

(4) 1M x 9

16MB

(4) 4M x 9

None

20MB

(4) 1M x 9

(4) 4M x 9

20MB

(4) 4M x 9

(4) 1M x 9

32MB

(4) 4M x 9

(4) 4M x 9

CACHE CONFIGURATION

Size

Bank 0

Bank 1

TAG (U48)

TAG (U49)

TAG (U50)

64KB

(4) 8K x 8

(4) 8K x 8

(4) 8K x 8

None

(1) 16K x 8

128KB

(4) 32K x 8

None

(4) 8K x 8

None

(1) 16K x 8

256KB

(4) 32K x 8

(4) 32K x 8

(4) 8K x 8

(4) 8K x 8

(1) 16K x 8

Note: The location of banks 0 & 1 and the TAG are unidentified.

CACHE JUMPER CONFIGURATION

Size

JP12

JP13

JP14

JP15

JP16

JP17

None

2 & 3

2 & 3

Open

Open

Open

Open

64KB

2 & 3

2 & 3

Open

Open

Open

Open

128KB

1 & 2

1 & 2

Closed

Open

Open

Closed

256KB

2 & 3

2 & 3

Closed

Closed

Closed

Closed

Note: Pins designated should be in the closed position.

VIDEO MEMORY CONFIGURATION

Size

Bank 0

Bank 1

1MB

1MB

None

2MB

1MB

1MB

Note: The size of the video memory chips are unidentified.

CPU SPEED SELECTION

Speed

JP5

JP6

25MHz

Closed

Open

33MHz

Open

Closed

50iMHz

Closed

Open

66iMHz

Open

Closed

CPU TYPE SELECTION

Type

JP1

JP2

JP3

80486SX (PQFP)

Pins 1 & 2 closed

Pins 2 & 3 closed

Closed

80486SX (PGA)

Open

Pins 1 & 2 closed

Open

80486DX (PGA)

Pins 1 & 2 closed

Pins 2 & 3 closed

Closed

80486DX2 (PGA)

Pins 1 & 2 closed

Pins 2 & 3 closed

Closed